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Key Features

Special Dormer PS 118-degree split-point angles are self-centering, to reduce walking, good for hard material, and to reduce pressure on cutting edges

Uncoated (bright) finish with Titanium Nitride (TiN) only at the tip, for hardness and heat resistance

Variable length, for a wide range of applications

High-speed steel (HSS), for use on a wide variety of materials

Round shanks, for use on a variety of tool-holding systems

Product Description

The Dormer A097 variable-length, TiN-tipped, general-purpose, round-shank drill bit set, offers a set of drills to drills holes into a wide variety of metals and synthetic materials. It can drill to a depth up to four times the diameter of the drill size. The shank diameter is the same as the drill size.

The A097 series has a type N flute form, with a regular helix (21 to 34 degrees) angle and with a special Dormer PS point geometry which offer easier workpiece penetration, improved hole size, and accurate centering when starting the hole. The TiN finish is a gold-colored ceramic coating that is hard and has low friction, permitting faster cutting speeds than uncoated materials. The jobber length offers a good compromise between reach and rigidity.

Drilling, or hole making, is the most common metalworking operation in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits can be used in hand-operated drills, standalone drill presses, or a lathe. They are made to ANSI industry standards, which ensure that drill bits around the world, confirm to the same specifications.

Precision manufactures machine tools under the following brands: Precision Twist, Precision Dormer, and Union Butterfield. The company has locations around the world, and provides tools adhering to ANSI, NAS, and DIN standards.